MAX78000: Add TRNG to SOC

This commit adds TRNG to max78000_soc

Signed-off-by: Jackson Donaldson
Message-id: 20250704223239.248781-10-jcksn@duck.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/hw/arm/max78000_soc.c b/hw/arm/max78000_soc.c
index 45c60883121e3a0f850d4818138f97fe3ca49c61..3f2069fb0391ee587dfa32adc9a40d3e30a1ae9a 100644 (file)
--- a/hw/arm/max78000_soc.c
+++ b/hw/arm/max78000_soc.c
@@ -43,6 +43,8 @@ static void max78000_soc_initfn(Object *obj)
                                 TYPE_MAX78000_UART);
     }
 
+    object_initialize_child(obj, "trng", &s->trng, TYPE_MAX78000_TRNG);
+
     s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);
 }
 
@@ -124,6 +126,13 @@ static void max78000_soc_realize(DeviceState *dev_soc, Error **errp)
                                                        max78000_uart_irq[i]));
     }
 
+    dev = DEVICE(&s->trng);
+    sysbus_realize(SYS_BUS_DEVICE(dev), errp);
+    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0x4004d000);
+    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(armv7m, 4));
+
+    object_property_set_link(OBJECT(gcrdev), "trng", OBJECT(dev), &err);
+
     dev = DEVICE(&s->gcr);
     sysbus_realize(SYS_BUS_DEVICE(dev), errp);
     sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0x40000000);
@@ -166,7 +175,6 @@ static void max78000_soc_realize(DeviceState *dev_soc, Error **errp)
     create_unimplemented_device("semaphore",            0x4003e000, 0x1000);
 
     create_unimplemented_device("spi1",                 0x40046000, 0x2000);
-    create_unimplemented_device("trng",                 0x4004d000, 0x1000);
     create_unimplemented_device("i2s",                  0x40060000, 0x1000);
     create_unimplemented_device("lowPowerControl",      0x40080000, 0x400);
     create_unimplemented_device("gpio2",                0x40080400, 0x200);

diff --git a/include/hw/arm/max78000_soc.h b/include/hw/arm/max78000_soc.h
index 919aca0855fc3c6fafa930b4a3fbe07e44090195..528598cfcbe2a386100eccf6006761e67a1e74a9 100644 (file)
--- a/include/hw/arm/max78000_soc.h
+++ b/include/hw/arm/max78000_soc.h
@@ -14,6 +14,7 @@
 #include "hw/misc/max78000_gcr.h"
 #include "hw/misc/max78000_icc.h"
 #include "hw/char/max78000_uart.h"
+#include "hw/misc/max78000_trng.h"
 #include "qom/object.h"
 
 #define TYPE_MAX78000_SOC "max78000-soc"
@@ -39,6 +40,7 @@ struct MAX78000State {
     Max78000GcrState gcr;
     Max78000IccState icc[MAX78000_NUM_ICC];
     Max78000UartState uart[MAX78000_NUM_UART];
+    Max78000TrngState trng;
 
     Clock *sysclk;
 };